Telex is an interesting proxy-less anti-censorship system designed to combat state-level censorship (pdf). But would it cost too much? Should we really trust "good" state-level actors with our anti-censorship efforts? And might it divert resources from established anonymity projects, like Tor, I2I, Freenet, etc.
In the same spirit as the Open Net Initiative and Committee to Protect Bloggers that both track global internet filtering, Sami ben Gharbia's Access Denied Map tries to track the blocking of sites like Blogger, Flickr, YouTube and others by governments, as well as efforts by activists to keep them accessible or to challenge their blockage.